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STS-31: APU Controller RemovalThe launch April 10 of the STS-31 was scrubbed at T-4 minutes due to a faulty valve in auxiliary power unit (APU) number one. The auxiliary power unit is a hydrazine-fueled, turbine-driven power unit that generates mechanical shaft power to drive a hydraulic pump that produces pressure for the orbiter's hydraulic system. This video shows the removal of the STS-31's auxiliary power unit (APU).
Document ID
20000031615
Acquisition Source
Kennedy Space Center
Document Type
Video
Date Acquired
August 19, 2013
Publication Date
April 11, 1990
Subject Category
Space Transportation And Safety
Report/Patent Number
NONP-NASA-VT-2000039787
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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